Class: QgsGeocoderInterface¶

Interface for geocoders.

QgsGeocoderInterface implementations are able to take either a QgsFeature or a free-form string and calculate the corresponding geometry of the feature.

Added in version 3.18.

Note

This is an abstract class, with methods which must be implemented by a subclass.

The following methods must be implemented: flags()

Class Hierarchy¶

Subclasses¶

`QgsGoogleMapsGeocoder`	A geocoder which uses the Google Map geocoding API to retrieve results.
`QgsNominatimGeocoder`	A geocoder which uses the Nominatim geocoding API to retrieve results.

class qgis.core.QgsGeocoderInterface[source]¶

Bases: object

class Flag(*values)¶

Bases: IntEnum

Capability flags for the geocoder.

GeocodesStrings: Can geocode string input values
GeocodesFeatures: Can geocode QgsFeature input values

GeocodesFeatures = 2¶

GeocodesStrings = 1¶

class Flags¶
class Flags(f: QgsGeocoderInterface.Flags | QgsGeocoderInterface.Flag)
class Flags(a0: QgsGeocoderInterface.Flags): Bases: object

virtual appendedFields(self) → QgsFields[source]¶

Returns a set of newly created fields which will be appended to existing features during the geocode operation.

These fields will include any extra content returned by the geocoder, such as fields for accuracy of the match or correct attribute values.

Return type:: QgsFields

abstract flags(self) → QgsGeocoderInterface.Flags[source]¶

Returns the geocoder’s capability flags.

Return type:: QgsGeocoderInterface.Flags

virtual geocodeFeature(self, feature: QgsFeature, context: QgsGeocoderContext, feedback: QgsFeedback | None = None) → List[QgsGeocoderResult]¶

Geocodes a feature.

If implemented by the geocoder (i.e. flags() returns the QgsGeocoderInterface.Flag.GeocodesFeatures flag), a list of matching results will be returned.

The optional feedback argument can be used to provider cancellation support.

Parameters:

feature (QgsFeature)
context (QgsGeocoderContext)
feedback (Optional[QgsFeedback] = None)

Return type:

List[QgsGeocoderResult]

virtual geocodeString(self, string: str | None, context: QgsGeocoderContext, feedback: QgsFeedback | None = None) → List[QgsGeocoderResult]¶

Geocodes a string.

If implemented by the geocoder (i.e. flags() returns the QgsGeocoderInterface.Flag.GeocodesStrings flag), a list of matching results will be returned.

The optional feedback argument can be used to provider cancellation support.

Parameters:

string (Optional[str])
context (QgsGeocoderContext)
feedback (Optional[QgsFeedback] = None)

Return type:

List[QgsGeocoderResult]

virtual wkbType(self) → Qgis.WkbType[source]¶

Returns the WKB type of geometries returned by the geocoder.

If this is not known in advance then QgsWkbTypes.Unknown should be returned (e.g. in the case that a geocoder may return different geometry types depending on the quality of the match).

Return type:: Qgis.WkbType